// Created by Bryan Keller on 11/8/20.
// Copyright © 2020 Airbnb Inc. All rights reserved.

// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import XCTest
@testable import HorizonCalendar

final class HorizontalMonthsLayoutOptionsTests: XCTestCase {

  func testMonthWidthOneVisibleMonth() {
    let options = HorizontalMonthsLayoutOptions(maximumFullyVisibleMonths: 1)

    XCTAssert(
      options.monthWidth(calendarWidth: 100, interMonthSpacing: 0) == 100,
      "Incorrect month width")

    XCTAssert(
      options.monthWidth(calendarWidth: 100, interMonthSpacing: 10) == 90,
      "Incorrect month width")
  }

  func testMonthWidthOneAndAHalfVisibleMonths() {
    let options = HorizontalMonthsLayoutOptions(maximumFullyVisibleMonths: 1.5)

    XCTAssert(
      options.monthWidth(calendarWidth: 120, interMonthSpacing: 0) == 80,
      "Incorrect month width")

    XCTAssert(
      options.monthWidth(calendarWidth: 120, interMonthSpacing: 10) == 70,
      "Incorrect month width")
  }

  func testMonthWidthFourVisibleMonths() {
    let options = HorizontalMonthsLayoutOptions(maximumFullyVisibleMonths: 4)

    XCTAssert(
      options.monthWidth(calendarWidth: 100, interMonthSpacing: 0) == 25,
      "Incorrect month width")

    XCTAssert(
      options.monthWidth(calendarWidth: 100, interMonthSpacing: 10) == 15,
      "Incorrect month width")
  }

}
